i knew the robots could play chess with us变疑问句

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/04/28 18:06:34

i knew the robots could play chess with us变疑问句
否定句呢，为什么could不变成can

I knew the robots could play chess with us.变疑问句
Did you know the robots could play chess with us?
你知道机器人能和我们下棋吗?
否定句：I didn't know the robots could play chess with us.
变否定句,加了助动词did后,knew由过去式变回原形.而宾语从句中的could仍然要与主句的时态保持一致,并不因为加了did,就改成can.
再问：否定句呢，为什么could不变成can
再答：刚才在上面说了一些。这个didn't 只能让主句的动词knew变回原形，而从句的could并不受这个助动词的影响。

i knew the robots could play chess with us变疑问句 It was so cool ___ the robots could play chess with us Are you i( ) in the robots that can play chess with people? The robot can play chess.变一般疑问句咋变? They could play chess with us.（对 with us 提问） I usually play chess with my grandpa[改成一般疑问句】 on monday,i to play the chess with my classmates. Sometime I can play the chess with my grandfather . I play with the toy,这句话怎么变特殊疑问句? I can’t____(play)chess with you. On Monday,I wentto the club to play the chess with my classm ---How is the play going on ---I've no idea.(_)of us knew ab